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#CiscoChampion Radio S2|Ep 1. Cisco ACI

CiscoChampion2015200PX#CiscoChampion Radio is a series by Cisco Champions as technologists. We’re kicking off Season 2 with Cisco Senior Architect Azeem Suleman, who is talking about Cisco ACI. Lauren Friedman (@lauren) moderates and Scott Morris and Jason Benedicic are this week’s Cisco Champion guest hosts.

Listen to the Podcast.

Learn about the Cisco Champions Program HERE.
See a list of all #CiscoChampion Radio podcasts HERE.

Cisco SME
Azeem Suleman, Cisco Senior Architect

Cisco Champions
Scott Morris, (@ScottMorrisCCIE), Senior Instructor
Jason Benedic, (@jabenedicic), Technical Architect

Highlights
ACI Overview
Benefits of ACI
Use case examples
Why ACI is different (from an SDN perspective)
Best practices for implementing ACI
ACI Contracts
ACI “WOW” factors Read More »

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Top Cisco Innovations

To celebrate 30 years of innovation at Cisco (#We are Cisco), we’ve asked Cisco Champions what they think is the most important Cisco innovation to date. Cisco Champions are seasoned IT technical experts and influencers who enjoy sharing their knowledge, expertise, and thoughts across the social web and with Cisco. The Cisco Champions program encompasses different areas of interest, such as Data Center, Internet of Things, Enterprise Networks, Collaboration and Security. Cisco Champions are located all over the world.
(Cisco Champions are not representatives of Cisco. Their views are their own)

Here are their top answers.

Cisco Nexus Series
The most important innovation for me is the Data Center Networking Solution with Nexus Portfolio N2K, N5K, N7K, and N9K, that allows us to address all challenges for our customers. I really appreciate the new campus solution based on C6800 with IA switches which uses the same technology as FEX. It really simplifies architecture and reduces OPEX with a single point of management.
Bertrand Bordereau
Bertrand Borderaeu
Network Consulting Engineer
@BBordereau Read More »

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#CiscoChampion Radio S1|Ep 45. Project Squared

CiscoChampion2015200PX#CiscoChampion Radio is a podcast series by Cisco Champions as technologists. Today we’re talking with Cisco VP and CTO of Collaboration,  Jonathan Rosenberg, about Project Squared. Kim Austin (@ciscokima) moderates and John Welsh, Joshua Warcop and Rick Vanover are this week’s Cisco Champion guest hosts.

Listen to the Podcast.

Learn about the Cisco Champions Program HERE.
See a list of all #CiscoChampion Radio podcasts HERE.

Cisco SME
Jonathan Rosenberg, Cisco VP and CTO, Collaboration (@jdrosen2)

Cisco Champions
John Welsh, (@samplefive), Unified Communications Engineer
Joshua Warcop, (@Warcop), Senior Consultant
Rick Vanover, (@RickVanover), Product Strategy Specialist and Community Manager Read More »

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#CiscoChampion Radio S1|Ep 44. Cisco Expressway

CiscoChampion2015200PX#CiscoChampion Radio is a podcast series by Cisco Champions as technologists. Today we’re talking with Cisco Technical Marketing Engineer Kevin Roarty about Cisco Expressway. Kim Austin (@ciscokima) moderates and Josh Kittle, Joshua Warcop and Rick Vanover are this week’s Cisco Champion guest hosts.

Listen to the Podcast.

Learn about the Cisco Champions Program HERE.
See a list of all #CiscoChampion Radio podcasts HERE.

Cisco SME
Cisco Technical Marketing Engineer Kevin Roarty

Cisco Champions
Joshua Warcop, (@Warcop), Senior Consultant
Josh Kittle, (@ciscovoicedude), Unified Communications Engineer
Rick Vanover, (@RickVanover), Product Strategy Specialist and Community Manager Read More »

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802.11ac: More Throughput For One or For All?

In today’s highly mobile society we try to stay as connected as we possibly can, whether that be for instant messaging, email, or keeping up with our favorite TV shows and movies. This obsession for connectivity has stressed the wireless infrastructures that are installed by many organizations. Because of this many organizations are looking to update their systems that support 802.11n technologies or even the older 802.11a/b/g standards. As a consultant it is one of my jobs to help a customer understand the new technology inside and out and make sure their networks are deployed accordingly. One of the major topics discussed when going over 802.11ac is throughput. 802.11ac brings with it a substantial jump in throughput, but there is a price to pay in order to achieve those higher data rates.

test-4Let’s go over a basic first, in wireless technology we use a frequency, or channel, to send our signal from the client to the station (access point). Think of this channel as a lane on a highway or freeway. A single lane carries so many cars per hour. Now if we add another lane in the same direction we can carry double the amount of traffic. This is repeated for each lane that you add. 802.11n and 802.11ac both allow us to combine multiple lanes to act as a single wide lane, allowing for larger traffic to pass. These channels are reflected as 20MHz, 40MHz (2 lanes – 802.11n and 802.11ac), and 80MHz (4 lanes – 802.11ac).

Ok, so we get the hole channel concept now right? So what’s the big deal then if we start combining these channels? Channels = capacity in the wireless world. A channel only has so much bandwidth to provide, you can’t create more, it’s a very finite resource. When our goal is to support hundreds of client devices in a large university auditorium for example, we want more channels as this gives us more overall capacity. If I were to deploy a true 802.11ac network for a university in an auditorium that requires say for example 6 access points I will end up with channel reuse when I avoid DFS channels in 5GHz. The channel reuse will degrade the performance of those access points using the same channel. Now if I deploy the same 6 access points with 40MHz channels I no longer have to worry about channel reuse in that auditorium. Read More »

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